FBI Investigates Massive Personnel Data Breach After ShinyHunters Cyber Attack Claims

An internal FBI memo reportedly told personnel to assume information about all employees may have been compromised. Samples reviewed by Reuters also reportedly identified assignments in counterintelligence, surveillance and work involving China, Russia and Iran.
FBI Cyber Division Assistant Director Brett Leatherman addressed ShinyHunters directly in a social-media video: “You know how to find us, and we know how to find you,” and urged the group to come forward before facing consequences.
Some current and former FBI employees told NPR that many personnel learned of the breach from media reports. They also suggested the stolen data tranche could amount to several terabytes, though the full amount has not been confirmed.
The breach surfaced amid other turmoil at the bureau: Andrew Bailey became the second deputy FBI director to leave in a year, following an internal dispute that reportedly involved reassigning two counterterrorism supervisors.
The FBI is investigating a major breach of its recruitment website after the cybercriminal group ShinyHunters claimed it stole thousands of personnel files. Fox News reports the stolen data includes personal details, family information, and job assignments for current and former FBI employees and job applicants. The sensitive information could expose FBI staff to phishing attacks, harassment, or physical targeting.
An internal FBI memo told personnel to assume their information was compromised, Reuters reported. The agency has taken FBIJobs.gov offline and is contacting affected individuals. FBI Cyber Division Assistant Director Brett Leatherman warned ShinyHunters in a social media video: "You know how to find us, and we know how to find you."
The compromised files reportedly include details about FBI employees' assignments in counterintelligence, surveillance, and operations involving China, Russia, and Iran. Reuters reviewed samples of the stolen data confirming these sensitive assignments were exposed. The full scope of the breach remains unclear, but some current and former FBI employees told NPR the stolen data could total several terabytes.
Many current and former FBI employees first learned about the theft from media coverage rather than official bureau notifications, NPR reported. This gap between the breach discovery and internal communication raised concerns about how the FBI handled employee notification. The lack of direct outreach frustrated staff who discovered they might be at risk through news headlines.
The breach comes amid internal upheaval at the FBI. Andrew Bailey became the second deputy FBI director to resign in one year, Alternet reports, following a dispute over reassigning two veteran counterterrorism supervisors. The leadership turnover raises questions about management focus during a critical security incident. The timing highlights broader organizational instability at the bureau.
FBI Cyber Division Assistant Director Brett Leatherman posted a direct challenge to the hackers on social media. KNAU reports Leatherman told ShinyHunters they should turn themselves in before facing consequences. The FBI is treating the breach as a serious national security matter and has committed full investigative resources to finding those responsible.
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